dropped my speedmaster and it seems to be losing like 15 seconds per day. do you think there is damage to the movement and I should get it repaired under warranty? I also dented the damn case so I'm pretty sad

I don't think warranty is going to cover you dropping it. The movement in the Speedmaster is pretty durable though. I dropped mine from 6 feet and it was running fine after. I serviced it a few months ago and it was running perfectly. If it didn't stop altogether I don't think you "broke" anything serious.